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/*
* Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __NEURUN_UTIL_FEATURE_NHWC_VIEW_H__
#define __NEURUN_UTIL_FEATURE_NHWC_VIEW_H__
#include <cassert>
#include <cstddef>
#include "Utils.h"
#include "util/Utils.h"
#include "misc/feature/Reader.h"
namespace neurun
{
namespace util
{
namespace feature
{
namespace nhwc
{
// This class is for cpu buffer only, and do not support padding.
template <typename T> class View final : public nnfw::misc::feature::Reader<T>
{
public:
View(const ::nnfw::misc::feature::Shape &shape, T *ptr, size_t len) : _shape{shape}, _ptr{ptr}
{
UNUSED_RELEASE(len); // Workaround for unused variable in release mode
assert(shape.N * shape.C * shape.H * shape.W * sizeof(T) == len);
}
public:
const nnfw::misc::feature::Shape &shape(void) const { return _shape; }
public:
T at(uint32_t ch, uint32_t row, uint32_t col) const override
{
uint32_t index = index_of(_shape, ch, row, col);
return _ptr[index];
}
T at(uint32_t batch, uint32_t ch, uint32_t row, uint32_t col) const override
{
uint32_t index = index_of(_shape, batch, ch, row, col);
return _ptr[index];
}
T &at(uint32_t ch, uint32_t row, uint32_t col)
{
uint32_t index = index_of(_shape, ch, row, col);
return _ptr[index];
}
T &at(uint32_t batch, uint32_t ch, uint32_t row, uint32_t col)
{
uint32_t index = index_of(_shape, batch, ch, row, col);
return _ptr[index];
}
private:
nnfw::misc::feature::Shape _shape;
private:
T *_ptr;
};
} // namespace nhwc
} // namespace feature
} // namespace util
} // namespace neurun
#endif // __NEURUN_UTIL_FEATURE_NHWC_VIEW_H__
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